Section 5 – SR-2 Diagnostics
85 FORCED UNIT OPERATION
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Alarm Type
Check Alarm
Associated Alarm
Codes
Alarm Code 26 Check Refrigeration Capacity
How Alarm is Set
This alarm is set only if an alert low refrigeration capacity alarm occurs while the unit is operating in the reduced
capacity state.
How Alarm is Cleared
This alarm clears automatically if the condition is resolved.
Considerations
1. This alarm is a secondary alarm that is set along with the associated primary alarm.
2. This alarm indicates that the unit was forced to a different operating mode than would normally be
implemented under the existing conditions. This can occur as result of low coolant temperature or high
compressor temperature. It indicates that normal unit operation has been over-ridden, (i.e., the discharge
pressure setpoint has been reduced). The alarm is only set if a low cooling capacity condition occurs while
the unit is in reduced capacity mode.
Diagnostic Procedure
Check for associated alarms and repair as required.
5-65
02 February 2005